Solve for y.
9/4y-12=1/4y-4

y=4

Step-by-step explanation:

9/4y-12=1/4y-4

Subtract 1/4y from each side

9/4y - 1/4 y-12=1/4y- 1/4 y-4

8/4y -12 = -4

Add 12 to each side

8/4 y -12+12 = -4+12

8/4 y = 8

Simplify the left hand side

2y = 8

Divide each side by 2

2y/2 = 8/2

y=4

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

what i would say the best answer is a. 40.5